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  • #46
    Re: dry fire sprinkler

    Just for anyone interested.

    http://www.uponor-usa.com/Misc/Appli...eneral-FS.aspx

    J.C.

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    • #47
      Re: dry fire sprinkler

      Ive worked in 1 house that had a sprinkler system in it. The homeowner was also a sprinkler system company owner. It had the orange pipe. I didnt pay attention, but if you guys say its CPVC I'll believe you. I do remember it having its own 2" water service from the street.

      Theres a dry system at my shop. It functions as Bob mentioned with an air compressor to keep 70 or so pounds of air on the top side of the clappers. If a head opens up the air pressure will drop, and the water pressure will overcome the clappers filling the system and sending water to the open head. Theres 6 of these clapper valves with 6" lines supplying each one. Its an impressive system that serves a total of 140,000 square feet.

      Andy

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      • #48
        Re: dry fire sprinkler

        Well there is not much that is not flamable if you get it hot enough!!

        The flash point is around 200* F and is very stable. It is used for de-icing planes, making smoke, and used extensively in food and cosmetics.

        Okie I think somebody fed youa line of crap. Just my opinion.

        G3

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        • #49
          Re: dry fire sprinkler

          What kind of a place do you work at Andy?

          G3

          looky here for the orange pipe
          http://www.blazemaster.com/default.asp
          Last edited by G3sprinklers; 01-25-2009, 08:42 PM. Reason: added cpvc pipe link

          Comment


          • #50
            Re: dry fire sprinkler

            What's the flashpoint of water?

            Think before you answer....

            J.C.

            Comment


            • #51
              Re: dry fire sprinkler

              [quote=G3sprinklers;203974]Well there is not much that is not flamable if you get it hot enough!![/quote]


              Just like I said

              G3

              Comment


              • #52
                Re: dry fire sprinkler

                [quote=G3sprinklers;203980]
                Originally posted by G3sprinklers View Post
                Well there is not much that is not flamable if you get it hot enough!![/quote]


                Just like I said

                G3
                ?????? Lighten' up G3.

                J.C.

                Comment


                • #53
                  Re: dry fire sprinkler

                  Sorry, been a long day and still going.

                  G3

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                  • #54
                    Re: dry fire sprinkler

                    I agree the Air Force made a bad choice on that one... That was about 8 years ago when PGlycol was not as well known.

                    The residental sprinklers are comming, as always it will be a mess as the states and codes try to sort it all out

                    Comment


                    • #55
                      Re: Dry system or not, you need the correct backflow device

                      Originally posted by MoJourneyman View Post
                      brass sprinkler heads, in a pex line, no part of that is non-potable. Were I to use the rv antifreeze, then yes, an rpz.


                      This line, is it dedicated? Meaning, serves one purpose and one purpose only.

                      Meaning, a tee...or are you catching this off a run that serves other fixtures.
                      Northern Kentucky Plumbers Twitter Feed | Plumbing Videos

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                      • #56
                        Re: dry fire sprinkler

                        in this instance, If I install it, it'll likely end up a wet system, just to avoid the having to install a compressor, and i'll likely make it a pressure loop, with no other fixtures on it.
                        if the concern is a line where the water is never flushed out, it's no different than that upstairs hall bath in many mcmansions after the kids move out.
                        No, it's not rocket science, it's plumbing and unlike rocket science it requires a license.

                        Comment


                        • #57
                          Re: dry fire sprinkler

                          Originally posted by MoJourneyman View Post
                          if the concern is a line where the water is never flushed out, it's no different than that upstairs hall bath in many mcmansions after the kids move out.
                          also, don't take statements like that from me as being standoffish, I read this forum because I learn a lot, and I should have phrased that more as a question.
                          No, it's not rocket science, it's plumbing and unlike rocket science it requires a license.

                          Comment

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